Cam & intake recomemndations - Bigjoe1, CamKing & others

[BRauscher]

Building a 355 for my brother's 86 Camaro. flat tops 10:1 AFR 210 eliminator heads. Has 4:30 gear w/TH350. Goal is 11.0's high 10's would be great. Converter will be matched to combo.
Thanks guys! I value your knowledge greatly.

[user-612937456]

Are you planning on cutting 500-600 Lbs off the 3400 curb weight. If not it may be challenging to do sub 11's with 10-1 355 cubes without spray or boost. 550+ HP will need a really radical non-streetable cam with 13-1 or more comp.

[autogear]

Put those heads on a 383 and you'll have a much easier time reaching your goal, with the potential for a more cost-effective and easier to maintain valvetrain. Plenty of guys here can help you do exactly what you want; but you're gonna be harder on parts and its going to be one rowdy 5.7L

[RevTheory]

You're right, autogear. It's going to be a 7,000 rpm, snotty son of a bitch. Is a 3.75 stroke crank off the table?

[greywolf]

Put those heads on a 383 and you'll have a much easier time reaching your goal, with the potential for a more cost-effective and easier to maintain valvetrain. Plenty of guys here can help you do exactly what you want; but you're gonna be harder on parts and its going to be one rowdy 5.7L

X2^^^^^

I know it doesn't answer your cam question, but you will be better satisfied with a 3.75 stroke.

[Monza355]

Solid roller in the mid 250's (something in the lines of comp cams 12-900-9) with a Victor JR intake and a 5500 stall and you should meet your goals with a 7000 rpm redline…

[RevTheory]

Solid roller in the mid 250's (something in the lines of comp cams 12-900-9) with a Victor JR intake and a 5500 stall and you should meet your goals with a 7000 rpm redline…

Damn, that big? I was thinking mid-240s on a 108.

[randy331]

Are you planning on cutting 500-600 Lbs off the 3400 curb weight. If not it may be challenging to do sub 11's with 10-1 355 cubes without spray or boost. 550+ HP will need a really radical non-streetable cam with 13-1 or more comp.

You're right, autogear. It's going to be a 7,000 rpm, snotty son of a bitch. Is a 3.75 stroke crank off the table?

I disagree with both of you. Why would it need to be snotty to make power at 7000 rpm?

Why would you need a really radical non-streetable cam?

Here's a link to a recent 357 build.

viewtopic.php?f=1&t=44801

I just went and started it with a vacuum gauge. Idles at 1000 rpm with 13"-14" goes straight from 1000 rpm to 5800 rpm stall when I hit the throttle.
The only time it's snotty is when it's arguing with the dyno brake, or with my converter.

And if you want 550 HP just shift "special needs" at 6000 or so.

Bet it will run 6.30s 1/8 mile in my nova.

Last thing you want to do is go down the bigger is better road.

Randy

[lefty o]

solid roller, 250x260 , 106-108, 580-600 lift.

[RevTheory]

We all have different opinions on what "streetable" is.

[randy331]

We all have different opinions on what "streetable" is.

I didn't see the OP say anything about street car.

Not sure how camZ are already being speced when we don't know if it's trailered to the track, street strip, street mostly etc.

Also "converter matched to combo" that mean sending dyno sheet to Coan/ATI etc and saying low et is it and paying the $1200 to get one, or calling around and finding the cheapest "5500" stall, or if it's street, how much street?
I'd also want to know the very highest RPM the OP is willing to spin it.

Weight too. That'd give an idea how fast 550 HP could be.

Randy

[RevTheory]

Probably all true, Randy. We need more infoZ before wading too deep.

[user-612937456]

LoL Damn Randy you sound like a big cam, you are so disagreeable today. Personally I don't consider 6000 stall too streetable. Streetable to me means I can drive it to Pigeon Forge Rod Runs and cruise on the blvd. If you need to haul it to an event a couple hundred miles away its not a street machine to me. I guess we all have our own Ideas though. But realistically we need BRauscher to define the purpose of the car before we make all these assumptions.

[CGT]

LoL Damn Randy you sound like a big cam, you are so disagreeable today. Personally I don't consider 6000 stall too streetable. Streetable to me means I can drive it to Pigeon Forge Rod Runs and cruise on the blvd. If you need to haul it to an event a couple hundred miles away its not a street machine to me. I guess we all have our own Ideas though. But realistically we need BRauscher to define the purpose of the car before we make all these assumptions.

Randy is borrowing the engine to make passes to validate the dyno bud. The engine is mine, makes 14 inches of vacuum and 590hp on 91 400ftlbs at 3000 and 500 at 5400.
Then going in a vehicle capable of everything you described.

[user-612937456]

LoL Damn Randy you sound like a big cam, you are so disagreeable today. Personally I don't consider 6000 stall too streetable. Streetable to me means I can drive it to Pigeon Forge Rod Runs and cruise on the blvd. If you need to haul it to an event a couple hundred miles away its not a street machine to me. I guess we all have our own Ideas though. But realistically we need BRauscher to define the purpose of the car before we make all these assumptions.

Randy is borrowing the engine to make passes to validate the dyno bud. The engine is mine, makes 14 inches of vacuum and 590hp on 91 400ftlbs at 3000 and 500 at 5400.
Then going in a vehicle capable of everything you described.

Bud not disputing the engineno need to be defensive just debating what is streetable 5500-6000 stall speed which is entirely not the point of this thread LOL so lets move on